Hoefer UVC500 - Instrukcja (Strona 19)

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Care and maintenance
Cleaning
Preventative maintenance includes regular clean-
ing of the compartment surface, the sensor, and
UV lamps.
• Use mild soap and water on a soft cloth or
sponge to clean the exterior.
• Gently wipe the photofeedback sensor and UV
lamps regularly with a soft cotton cloth damp-
ened with alcohol.
• Always wipe any water and spills from the inside
of the unit and clean away all chemicals after
each use.
• Never use abrasive cleaners, acetone or chloro-
form on any part.
Replacing UV lamps
Periodically check that all five lamps function
by looking through the view window while the
unit is on. If one or more lamps are burned out,
it is recommended that all five be replaced at the
same time. To replace each lamp:
1
Turn off the mains power switch and disconnect the
power cord.
2
Locate the lamps along the top of the compartment.
Remove each lamp by carefully rotating it 1/4 – 1/3
turn and then carefully pulling it loose.
3
To insert the new lamp, hold it so that the metal plugs
at the ends align vertically. Place the lamp in the
sockets at each end of the unit and lightly push it up
into place. Rotate the lamp to lock it into place.
Caution! Always turn the
mains power switch off and
unplug the instrument
before cleaning.
Important! The photofeed-
back system is calibrated
to 254 nm UV light. Do not
install lamps rated for a differ-
ent wavelength.